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Kolk list

 
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bgreen(at)bimi.org
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PostPosted: Wed Jul 14, 2010 8:33 am    Post subject: Kolk list Reply with quote

Anyone heard from Cristal the Kolb Mark II flyer? Been wondering about the birth of her baby and if she
Still has the MKII???
Also John Hauck... How did you make the switch from the round landing gear spring to the flat required by the new Maule type tail wheel? You may have posted pictures at an earlier time??? How are you doing with therapy? Recovery? John, I enjoy having the photo your plane in Alaska as the background on my office desk top. It encourages me to keep working on mine.
Bob


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John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

PostPosted: Wed Jul 14, 2010 1:37 pm    Post subject: Kolk list Reply with quote

> Also John Hauck... How did you make the switch from the round landing
gear spring to the flat required by the new Maule type tail wheel? You may
have posted pictures at an earlier time???

> Bob
Bob:

We fabricated a short tailwheel strut from .120" wall 4130 (don't remember
the OD, probably 3/4").

Welded a .250 4130 plate at the correct angle to make the pivot axle
vertical when the mkIII was sitting in the 3 point position.

A short piece of 3/8" ID bushing stock was welded to match the single bolt
hole on the Maule TW mount.

Maule TWs can be bought for 1 1/4" and 1 1/2" springs. I use the 1 1/4".

This is the last tailwheel I installed last May:

http://www.aircraftspruce.com/catalog/lgpages/maule_sfsatw.php

There are some photos of the tailwheel and strut floating on the internet or
in someone's computer. I am still at Nell's with lap top. Most of my stuff
is at hauck's holler in my desk top or CDs.

john h
mkIII - 3,000.0+ hours airframe
400.0+ hours Rotax 912ULS


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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama
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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Thu Jul 15, 2010 2:44 am    Post subject: Re: Kolk list Reply with quote

The attached photo may help see how the flat leaf spring type tail wheel mount is installed on my Slingshot. This replaced the original standard Kolb installation after it broke. The Slingshot tail is very heavy compared to most Kolbs so this extra heavy duty spring arrangement is warranted.

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Tailwheel lower res.jpg
 Description:
Leaf spring tail wheel mount on Slingshot.
 Filesize:  330.51 KB
 Viewed:  4296 Time(s)

Tailwheel lower res.jpg



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Thom Riddle
Buffalo, NY (9G0)



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williamtsullivan(at)att.n
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PostPosted: Thu Jul 15, 2010 2:56 am    Post subject: Kolk List Reply with quote

Thom- How much weight is on the Slingshot tail wheel? My Firestar weighs in at 61 pounds.

        Bill Sullivan
        Windsor locks, Ct.
        FS 447
[quote][b]


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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Thu Jul 15, 2010 3:27 am    Post subject: Re: Kolk list Reply with quote

Bill,

I've never weighed it but would guess by what it feels like when I have to lift it that in 3-point stance it is 100-110 lb. Current empty weight is about 530 lb. so about 20% of the total weight is on the tail in 3-point attitude.


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Thom Riddle
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Thom Riddle



Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

PostPosted: Thu Jul 15, 2010 3:38 am    Post subject: Re: Kolk list Reply with quote

Bill,

I just checked my W&B and noted that the current empty weight is 526 lb and in correct weighing attitude there is 105 lb on the tail.


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williamtsullivan(at)att.n
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PostPosted: Thu Jul 15, 2010 4:03 am    Post subject: Kolk List Reply with quote

I didn't think a Slingshot was that heavy, but considering the landing gear angle I can understand the relatively heavier weight on the tail wheel. Interesting.

do not archive

        Bill Sullivan
        Windsor Locks, Ct.
        FS 447
[quote][b]


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